class_docstr: Stacked Bar graph class
docstr: Draw bars for series and secondary series
docstr_tok: ["Draw","bars","for","series","and","secondary","series"]
code: def _plot(self):
      """Draw bars for series and secondary series"""
      for serie in self.series[:: -1 if self.stack_from_top else 1]:
          self.bar(serie)
      for serie in self.secondary_series[
          :: -1 if self.stack_from_top else 1
      ]:
          self.bar(serie, True)
  
file_path: pygal/pygal/graph/stackedbar.py
imports: from pygal.adapters import none_to_zero
  from pygal.graph.bar import Bar
label_desc: Use image node_id 6 for calling the StackedBar obj's underlying member method code with example usage: obj._plot() without return types